Abstract
Polyethylene glycol (PEG)-treatment decreased chlorophyll and protein contents and increased NH4 + content due to decreased glutamine synthetase activity in detached rice leaves. PEG-treatment also increased abscisic acid (ABA) content and decreased ethylene production. Addition of fluridone, an inhibitor of ABA biosynthesis, reduced ABA content in rice leaves but did not prevent chlorophyll and protein loss in rice leaves induced by PEG. Silver thiosulfate, an inhibitor of ethylene action, was effective in preventing PEG-promoted chlorophyll and protein loss, but had no effect on PEG-induced NH4 + accumulation. The current results suggest that NH4 + accumulation in rice leaves induced by PEG increases leaf sensitivity to ethylene, which in turn results in an enhancement of chlorophyll and protein loss.
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Claims 10
Claim · model-written summary
PEG decreased chlorophyll and protein contents in detached rice leaves.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- detached rice leavese0
- Treatment
- Polyethylene glycol (PEG)-treatmente0
- Outcome
- chlorophyll and protein contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol (PEG)-treatment decreased chlorophyll and protein contents and increased NH4 + content due to decreased glutamine synthetase activity in detached rice leaves”
Claim · model-written summary
PEG increased ammonium content in detached rice leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- detached rice leavese0
- Treatment
- Polyethylene glycol (PEG)-treatmente0
- Outcome
- NH4 + contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol (PEG)-treatment decreased chlorophyll and protein contents and increased NH4 + content due to decreased glutamine synthetase activity in detached rice leaves”
Claim · model-written summary
PEG decreased glutamine synthetase activity in detached rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- Polyethylene glycol (PEG)-treatmente0
- Gene
- glutamine synthetasee0
- Outcome
- glutamine synthetase activitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol (PEG)-treatment decreased chlorophyll and protein contents and increased NH4 + content due to decreased glutamine synthetase activity in detached rice leaves”
Claim · model-written summary
PEG increased ABA content in rice leaves.
- Taxon
- RiceOryza sativat0
- Treatment
- PEG-treatmente0
- Outcome
- abscisic acid (ABA) contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PEG-treatment also increased abscisic acid (ABA) content and decreased ethylene production.”
t0“Rice Leaves”
Claim · model-written summary
PEG decreased ethylene production in rice leaves.
- Taxon
- RiceOryza sativat0
- Treatment
- PEG-treatmente0
- Outcome
- ethylene productione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PEG-treatment also increased abscisic acid (ABA) content and decreased ethylene production.”
t0“Rice Leaves”
Claim · model-written summary
Fluridone reduced ABA content in rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- fluridonee0
- Outcome
- ABA contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of fluridone, an inhibitor of ABA biosynthesis, reduced ABA content in rice leaves”
Claim · model-written summary
Fluridone did not prevent PEG-induced chlorophyll and protein loss in rice leaves.
- Taxon
- riceOryza sativae0
- Treatment
- fluridonee0
- Outcome
- chlorophyll and protein losse0
- Direction
- did not prevente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fluridone, an inhibitor of ABA biosynthesis, reduced ABA content in rice leaves but did not prevent chlorophyll and protein loss in rice leaves induced by PEG”
Claim · model-written summary
Silver thiosulfate prevented PEG-promoted chlorophyll and protein loss in rice leaves.
- Taxon
- RiceOryza sativat0
- Treatment
- Silver thiosulfatee0
- Outcome
- chlorophyll and protein losse0
- Direction
- preventinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silver thiosulfate, an inhibitor of ethylene action, was effective in preventing PEG-promoted chlorophyll and protein loss”
t0“Rice Leaves”
Claim · model-written summary
Silver thiosulfate did not affect PEG-induced ammonium accumulation in rice leaves.
- Taxon
- RiceOryza sativat0
- Treatment
- Silver thiosulfatee0
- Outcome
- PEG-induced NH4 + accumulatione0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silver thiosulfate, an inhibitor of ethylene action, was effective in preventing PEG-promoted chlorophyll and protein loss, but had no effect on PEG-induced NH4 + accumulation”
t0“Rice Leaves”
Claim · model-written summary
The authors infer that PEG-induced ammonium accumulation increases rice leaf sensitivity to ethylene, enhancing chlorophyll and protein loss.
- Taxon
- riceOryza sativae0
- Compound
- ethylenee0
- Outcome
- chlorophyll and protein losse0
- Qualifier
- NH4 + accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NH4 + accumulation in rice leaves induced by PEG increases leaf sensitivity to ethylene, which in turn results in an enhancement of chlorophyll and protein loss”
The same questions in other papers
poly(ethylene glycol) · physiology: enzyme activity · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- positive
thiosulfate · molecular: metabolites · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- positive
silver atom · molecular: metabolites · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
Fluridone · physiology: pigments · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- negative
poly(ethylene glycol) · physiology: pigments · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.